Patent US3227049A successfully refreshed from Google Patents.
US3227049A
Expired / Lapsed
US
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Means for axially reciprocating a revolving shaft
Assignee: LANDIS GENDRON SA
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Filing: 1964-05-26
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Granted: 1966-01-04
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Expires: 1984-05-26
Abstract
No abstract record available.
Inventors
- 👤 Favrot Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:38
CPC Classifications
F; F15; F15B; F15B21/00; F15B21/12; B; B06; B06B; B06B1/00; B06B1/18; B06B1/183; B23; B23Q; B23Q5/00; B23Q5/22; B23Q5/26; B23Q5/261; B23Q5/263; B24; B24B; B24B41/00; B24B41/04; B24B47/00; B24B47/02; B24B47/06; B24B47/10; B24B47/14; F15B11/00; F15B11/08; F16; F16C; F16C31/00; F16C31/02; F16C32/00; F16C32/06; F16C32/0681; F16C32/0692; F16C2322/00; F16C2322/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
MECHANISM COMPRISING A SHAFT; BEARING MEANS SUPPORTING THE SHAFT FOR ROTATION AND AXIAL RECIPROCATION; A FIRST AND SECOND PRESSURE CHAMBERS SURROUNDING AXIALLY SPACED SECTIONS OF THE SHAFT; OPPOSITELY-DIRECTED FIRST AND SECOND PRESSURE-RESPONSIVE SURFACES ON THE SHAFT EXPOSED TO THE PRESSURE IN THE FIRST AND SECOND CHAMBERS RESPECTIVELY; A THIRD PRESSURE CHAMBER SURROUNDING THE SHAFT ADJACENT SAID FIRST CHAMBER AND A THIRD PRESSURE-RESPONSIVE SURFACE ON THE SHAFT DIRECTED IN THE SAME AXIAL DIRECTION AS SAID FIRST PRESSURE RESPONSIVE SURFACE AND EXPOSED TO THE PRESSURE IN SAID THIRD CHAMBER; PRESSURE FLUID INLETS INTO THE RESPECTIVE CHAMBERS; MEANS DEFINING FLUID EXHAUST PASSAGES FROM THE RESPECTIVE CHAMBERS WITH THE EFFECTIVE EXHAUST FLOW SECTION AREA THROUGH THE EXHAUST PASSAGE
Claim 2
Dependent Claim
114 words
MECHANISM COMPRISING A SHAFT; BEARING MEANS SUPPORTING THE SHAFT FOR ROTATION AND AXIAL RECIPROCATION; A FIRST AND SECOND PRESSURE CHAMBERS SURROUNDING AXIALLY SPACED SECTIONS OF THE SHAFT; OPPOSITELY-DIRECTED FIRST AND SECOND PRESSURE-RESPONSIVE SURFACES ON THE SHAFT EXPOSED TO THE PRESSURE IN THE FIRST AND SECOND CHAMBERS RESPECTIVELY; A THIRD PRESSURE CHAMBER SURROUNDING THE SHAFT ADJACENT SAID FIRST CHAMBER AND A THIRD PRESSURE-RESPONSIVE SURFACE ON THE SHAFT DIRECTED IN THE SAME AXIAL DIRECTION AS SAID FIRST PRESSURE RESPONSIVE SURFACE AND EXPOSED TO THE PRESSURE IN SAID THIRD CHAMBER; PRESSURE FLUID INLETS INTO THE RESPECTIVE CHAMBERS; MEANS DEFINING FLUID EXHAUST PASSAGES FROM THE RESPECTIVE CHAMBERS WITH THE EFFECTIVE EXHAUST FLOW SECTION AREA THROUGH THE EXHAUST PASSAGE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |